Adds support for microversion 2.62 which adds ``host``
(hostname) and ``hostId`` (an obfuscated hashed host id string)
fields to the instance action
``GET /servers/{server_id}/os-instance-actions/{req_id}`` API.
The event column is already included in the result of
"nova instance-action <server> <request-id>" command, therefore
does not have any CLI or python API binding impacts in the
client.
Related nova API change: I2f8b4a12a088b9ed96b428eafde2e0c478fb1db5
Part of blueprint: add-host-to-instance-action-events
Change-Id: Iee7e1a3a22249c98873aa96694fd4885916cd097
5483be7fe7